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Author Topic: GCP's and Geoids  (Read 1170 times)

kevinstewart

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GCP's and Geoids
« on: June 17, 2020, 04:37:44 PM »
Hi guys,

I process aerial images with GCP's.

My surveyor provides me the GCP in: WGS84-UTM 43N and EGM08-2.5' GEOID.

I set the project CRS to WGS84-UTM 43N.

The outputs are in WGS84-UTM 43N.

The accuracy is also good . Check point within 6 cases.

My question is do I need to include EGM08-2.5' geoid for project CRS when processing? OR selecting  WGS84-UTM 43N is sufficient??
NOTE: the outputs obtained so far are accurate with 0.05m check point accuracy. Z in MSL.